This minor release includes 10 security fixes following the security policy:
- net/mail: excessive CPU consumption in ParseAddress
The ParseAddress function constructed domain-literal address components through repeated string concatenation. When parsing large domain-literal components, this could cause excessive CPU consumption.
Thanks to Philippe Antoine (Catena cyber) for reporting this issue.
This is CVE-2025-61725 and Go issue https://go.dev/issue/75680.
- crypto/x509: quadratic complexity when checking name constraints
Due to the design of the name constraint checking algorithm, the processing time
of some inputs scales non-linearly with respect to the size of the certificate.
This affects programs which validate arbitrary certificate chains.
Thanks to Jakub Ciolek for reporting this issue.
This is CVE-2025-58187 and Go issue https://go.dev/issue/75681.
- crypto/tls: ALPN negotiation errors can contain arbitrary text
The crypto/tls conn.Handshake method returns an error on the server-side when
ALPN negotation fails which can contain arbitrary attacker controlled
information provided by the client-side of the connection which is not escaped.
This affects programs which log these errors without any additional form of
sanitization, and may allow injection of attacker controlled information into
logs.
Thanks to National Cyber Security Centre Finland for reporting this issue.
This is CVE-2025-58189 and Go issue https://go.dev/issue/75652.
- encoding/pem: quadratic complexity when parsing some invalid inputs
Due to the design of the PEM parsing function, the processing time for some
inputs scales non-linearly with respect to the size of the input.
This affects programs which parse untrusted PEM inputs.
Thanks to Jakub Ciolek for reporting this issue.
This is CVE-2025-61723 and Go issue https://go.dev/issue/75676.
- net/url: insufficient validation of bracketed IPv6 hostnames
The Parse function permitted values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed within square brackets. For example: "http://[::1]/". IPv4 addresses and hostnames must not appear within square brackets. Parse did not enforce this requirement.
Thanks to Enze Wang, Jingcheng Yang and Zehui Miao of Tsinghua University for reporting this issue.
This is CVE-2025-47912 and Go issue https://go.dev/issue/75678.
- encoding/asn1: pre-allocating memory when parsing DER payload can cause memory exhaustion
When parsing DER payloads, memories were being allocated prior to fully validating the payloads.
This permits an attacker to craft a big empty DER payload to cause memory exhaustion in functions such as asn1.Unmarshal, x509.ParseCertificateRequest, and ocsp.ParseResponse.
Thanks to Jakub Ciolek for reporting this issue.
This is CVE-2025-58185 and Go issue https://go.dev/issue/75671.
- net/http: lack of limit when parsing cookies can cause memory exhaustion
Despite HTTP headers having a default limit of 1 MB, the number of cookies that can be parsed did not have a limit.
By sending a lot of very small cookies such as "a=;", an attacker can make an HTTP server allocate a large amount of structs, causing large memory consumption.
net/http now limits the number of cookies accepted to 3000, which can be adjusted using the httpcookiemaxnum GODEBUG option.
Thanks to jub0bs for reporting this issue.
This is CVE-2025-58186 and Go issue https://go.dev/issue/75672.
- crypto/x509: panic when validating certificates with DSA public keys
Validating certificate chains which contain DSA public keys can cause programs
to panic, due to a interface cast that assumes they implement the Equal method.
This affects programs which validate arbitrary certificate chains.
Thanks to Jakub Ciolek for reporting this issue.
This is CVE-2025-58188 and Go issue https://go.dev/issue/75675.
- archive/tar: unbounded allocation when parsing GNU sparse map
tar.Reader did not set a maximum size on the number of sparse region data blocks in GNU tar pax 1.0 sparse files. A maliciously-crafted archive containing a large number of sparse regions could cause a Reader to read an unbounded amount of data from the archive into memory. When reading from a compressed source, a small compressed input could result in large allocations.
Thanks to Harshit Gupta (Mr HAX) - https://www.linkedin.com/in/iam-harshit-gupta/ for reporting this issue.
This is CVE-2025-58183 and Go issue https://go.dev/issue/75677.
- net/textproto: excessive CPU consumption in Reader.ReadResponse
The Reader.ReadResponse function constructed a response string through
repeated string concatenation of lines. When the number of lines in a response is large,
this could cause excessive CPU consumption.
Thanks to Jakub Ciolek for reporting this issue.
This is CVE-2025-61724 and Go issue https://go.dev/issue/75716.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
This includes 1 security fix:
- net/http: CrossOriginProtection bypass patterns are over-broad
When passing patterns to CrossOriginProtection.AddInsecureBypassPattern,
requests that would have redirected to those patterns (e.g. without a trailing
slash) were also exempted, which might be unexpected.
Thanks to Marco Gazerro for reporting this issue.
This is CVE-2025-47910 and Go issue https://go.dev/issue/75054.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.24.7
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
- https://github.com/golang/go/issues?q=milestone%3AGo1.24.5+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.24.4...go1.24.5
This minor releases include 1 security fixes following the security policy:
- cmd/go: unexpected command execution in untrusted VCS repositories
Various uses of the Go toolchain in untrusted VCS repositories can result in
unexpected code execution. When using the Go toolchain in directories fetched
using various VCS tools (such as directly cloning Git or Mercurial repositories)
can cause the toolchain to execute unexpected commands, if said directory
contains multiple VCS configuration metadata (such as a '.hg' directory in a Git
repository). This is due to how the Go toolchain attempts to resolve which VCS
is being used in order to embed build information in binaries and determine
module versions.
The toolchain will now abort attempting to resolve which VCS is being used if it
detects multiple VCS configuration metadata in a module directory or nested VCS
configuration metadata (such as a '.git' directoy in a parent directory and a
'.hg' directory in a child directory). This will not prevent the toolchain from
building modules, but will result in binaries omitting VCS related build
information.
If this behavior is expected by the user, the old behavior can be re-enabled by
setting GODEBUG=allowmultiplevcs=1. This should only be done in trusted
repositories.
Thanks to RyotaK (https://ryotak.net) of GMO Flatt Security Inc for reporting
this issue.
This is CVE-2025-4674 and https://go.dev/issue/74380.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.24.5
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
- https://github.com/golang/go/issues?q=milestone%3AGo1.24.4+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.24.3...go1.24.4
This release includes 3 security fixes following the security policy:
- net/http: sensitive headers not cleared on cross-origin redirect
Proxy-Authorization and Proxy-Authenticate headers persisted on cross-origin redirects potentially leaking sensitive information.
Thanks to Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.) for reporting this issue.
This is CVE-2025-4673 and Go issue https://go.dev/issue/73816.
- os: inconsistent handling of O_CREATE|O_EXCL on Unix and Windows
os.OpenFile(path, os.O_CREATE|O_EXCL) behaved differently on Unix and Windows systems when the target path was a dangling symlink. On Unix systems, OpenFile with O_CREATE and O_EXCL flags never follows symlinks. On Windows, when the target path was a symlink to a nonexistent location, OpenFile would create a file in that location.
OpenFile now always returns an error when the O_CREATE and O_EXCL flags are both set and the target path is a symlink.
Thanks to Junyoung Park and Dong-uk Kim of KAIST Hacking Lab for discovering this issue.
This is CVE-2025-0913 and Go issue https://go.dev/issue/73702.
- crypto/x509: usage of ExtKeyUsageAny disables policy validation
Calling Verify with a VerifyOptions.KeyUsages that contains ExtKeyUsageAny unintentionally disabledpolicy validation. This only affected certificate chains which contain policy graphs, which are rather uncommon.
Thanks to Krzysztof Skrzętnicki (@Tener) of Teleport for reporting this issue.
This is CVE-2025-22874 and Go issue https://go.dev/issue/73612.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
full diff: https://github.com/golang/go/compare/go1.23.7...go1.23.8
release notes: https://go.dev/doc/devel/release#go1.24.2
go1.23.8 (released 2025-04-01) includes security fixes to the net/http package,
as well as bug fixes to the runtime and the go command. See the Go 1.23.8
milestone on our issue tracker for details;
https://github.com/golang/go/issues?q=milestone%3AGo1.23.8+label%3ACherryPickApproved
From the mailing list:
Hello gophers,
We have just released Go versions 1.24.2 and 1.23.8, minor point releases.
These minor releases include 1 security fixes following the security policy:
- net/http: request smuggling through invalid chunked data
The net/http package accepted data in the chunked transfer encoding
containing an invalid chunk-size line terminated by a bare LF.
When used in conjunction with a server or proxy which incorrectly
interprets a bare LF in a chunk extension as part of the extension,
this could permit request smuggling.
The net/http package now rejects chunk-size lines containing a bare LF.
Thanks to Jeppe Bonde Weikop for reporting this issue.
This is CVE-2025-22871 and Go issue https://go.dev/issue/71988.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This minor release include 1 security fix following the security policy:
- crypto/elliptic: timing sidechannel for P-256 on ppc64le
Due to the usage of a variable time instruction in the assembly implementation
of an internal function, a small number of bits of secret scalars are leaked on
the ppc64le architecture. Due to the way this function is used, we do not
believe this leakage is enough to allow recovery of the private key when P-256
is used in any well known protocols.
This is CVE-2025-22866 and Go issue https://go.dev/issue/71383.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.23.6
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
go1.23.5 (released 2025-01-16) includes security fixes to the crypto/x509 and
net/http packages, as well as bug fixes to the compiler, the runtime, and the
net package. See the Go 1.23.5 milestone on our issue tracker for details;
- https://github.com/golang/go/issues?q=milestone%3AGo1.23.5+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.23.4...go1.23.5
Hello gophers,
We have just released Go versions 1.23.5 and 1.22.11, minor point releases.
These minor releases include 2 security fixes following the security policy:
- crypto/x509: usage of IPv6 zone IDs can bypass URI name constraints
A certificate with a URI which has a IPv6 address with a zone ID may
incorrectly satisfy a URI name constraint that applies to the certificate
chain.
Certificates containing URIs are not permitted in the web PKI, so this
only affects users of private PKIs which make use of URIs.
Thanks to Juho Forsén of Mattermost for reporting this issue.
This is CVE-2024-45341 and Go issue https://go.dev/issue/71156.
- net/http: sensitive headers incorrectly sent after cross-domain redirect
The HTTP client drops sensitive headers after following a cross-domain redirect.
For example, a request to a.com/ containing an Authorization header which is
redirected to b.com/ will not send that header to b.com.
In the event that the client received a subsequent same-domain redirect, however,
the sensitive headers would be restored. For example, a chain of redirects from
a.com/, to b.com/1, and finally to b.com/2 would incorrectly send the Authorization
header to b.com/2.
Thanks to Kyle Seely for reporting this issue.
This is CVE-2024-45336 and Go issue https://go.dev/issue/70530.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- https://github.com/golang/go/issues?q=milestone%3AGo1.22.7+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.22.6...go1.22.7
These minor releases include 3 security fixes following the security policy:
- go/parser: stack exhaustion in all Parse* functions
Calling any of the Parse functions on Go source code which contains deeply nested literals can cause a panic due to stack exhaustion.
This is CVE-2024-34155 and Go issue https://go.dev/issue/69138.
- encoding/gob: stack exhaustion in Decoder.Decode
Calling Decoder.Decode on a message which contains deeply nested structures can cause a panic due to stack exhaustion.
This is a follow-up to CVE-2022-30635.
Thanks to Md Sakib Anwar of The Ohio State University (anwar.40@osu.edu) for reporting this issue.
This is CVE-2024-34156 and Go issue https://go.dev/issue/69139.
- go/build/constraint: stack exhaustion in Parse
Calling Parse on a "// +build" build tag line with deeply nested expressions can cause a panic due to stack exhaustion.
This is CVE-2024-34158 and Go issue https://go.dev/issue/69141.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.23.1
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
- https://github.com/golang/go/issues?q=milestone%3AGo1.21.12+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.21.11...go1.21.12
These minor releases include 1 security fixes following the security policy:
net/http: denial of service due to improper 100-continue handling
The net/http HTTP/1.1 client mishandled the case where a server responds to a request with an "Expect: 100-continue" header with a non-informational (200 or higher) status. This mishandling could leave a client connection in an invalid state, where the next request sent on the connection will fail.
An attacker sending a request to a net/http/httputil.ReverseProxy proxy can exploit this mishandling to cause a denial of service by sending "Expect: 100-continue" requests which elicit a non-informational response from the backend. Each such request leaves the proxy with an invalid connection, and causes one subsequent request using that connection to fail.
Thanks to Geoff Franks for reporting this issue.
This is CVE-2024-24791 and Go issue https://go.dev/issue/67555.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.21.12
**- Description for the changelog**
```markdown changelog
Update Go runtime to 1.21.12
```
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
go1.21.11 (released 2024-06-04) includes security fixes to the archive/zip
and net/netip packages, as well as bug fixes to the compiler, the go command,
the runtime, and the os package. See the Go 1.21.11 milestone on our issue
tracker for details;
- https://github.com/golang/go/issues?q=milestone%3AGo1.21.11+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.21.10...go1.21.11
From the security announcement;
We have just released Go versions 1.22.4 and 1.21.11, minor point releases.
These minor releases include 2 security fixes following the security policy:
- archive/zip: mishandling of corrupt central directory record
The archive/zip package's handling of certain types of invalid zip files
differed from the behavior of most zip implementations. This misalignment
could be exploited to create an zip file with contents that vary depending
on the implementation reading the file. The archive/zip package now rejects
files containing these errors.
Thanks to Yufan You for reporting this issue.
This is CVE-2024-24789 and Go issue https://go.dev/issue/66869.
- net/netip: unexpected behavior from Is methods for IPv4-mapped IPv6 addresses
The various Is methods (IsPrivate, IsLoopback, etc) did not work as expected
for IPv4-mapped IPv6 addresses, returning false for addresses which would
return true in their traditional IPv4 forms.
Thanks to Enze Wang of Alioth and Jianjun Chen of Zhongguancun Lab
for reporting this issue.
This is CVE-2024-24790 and Go issue https://go.dev/issue/67680.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- https://github.com/golang/go/issues?q=milestone%3AGo1.21.10+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.21.9...go1.21.10
These minor releases include 2 security fixes following the security policy:
- cmd/go: arbitrary code execution during build on darwin
On Darwin, building a Go module which contains CGO can trigger arbitrary code execution when using the Apple version of ld, due to usage of the -lto_library flag in a "#cgo LDFLAGS" directive.
Thanks to Juho Forsén of Mattermost for reporting this issue.
This is CVE-2024-24787 and Go issue https://go.dev/issue/67119.
- net: malformed DNS message can cause infinite loop
A malformed DNS message in response to a query can cause the Lookup functions to get stuck in an infinite loop.
Thanks to long-name-let-people-remember-you on GitHub for reporting this issue, and to Mateusz Poliwczak for bringing the issue to our attention.
This is CVE-2024-24788 and Go issue https://go.dev/issue/66754.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.22.3
**- Description for the changelog**
```markdown changelog
Update Go runtime to 1.21.10
```
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
go1.21.9 (released 2024-04-03) includes a security fix to the net/http
package, as well as bug fixes to the linker, and the go/types and
net/http packages. See the [Go 1.21.9 milestone](https://github.com/golang/go/issues?q=milestone%3AGo1.21.9+label%3ACherryPickApproved)
for more details.
These minor releases include 1 security fixes following the security policy:
- http2: close connections when receiving too many headers
Maintaining HPACK state requires that we parse and process all HEADERS
and CONTINUATION frames on a connection. When a request's headers exceed
MaxHeaderBytes, we don't allocate memory to store the excess headers but
we do parse them. This permits an attacker to cause an HTTP/2 endpoint
to read arbitrary amounts of header data, all associated with a request
which is going to be rejected. These headers can include Huffman-encoded
data which is significantly more expensive for the receiver to decode
than for an attacker to send.
Set a limit on the amount of excess header frames we will process before
closing a connection.
Thanks to Bartek Nowotarski (https://nowotarski.info/) for reporting this issue.
This is CVE-2023-45288 and Go issue https://go.dev/issue/65051.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.22.2
- https://github.com/golang/go/issues?q=milestone%3AGo1.21.9+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.21.8...go1.21.9
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
go1.21.5 (released 2023-12-05) includes security fixes to the go command,
and the net/http and path/filepath packages, as well as bug fixes to the
compiler, the go command, the runtime, and the crypto/rand, net, os, and
syscall packages. See the Go 1.21.5 milestone on our issue tracker for
details:
- https://github.com/golang/go/issues?q=milestone%3AGo1.21.5+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.21.4...go1.21.5
from the security mailing:
[security] Go 1.21.5 and Go 1.20.12 are released
Hello gophers,
We have just released Go versions 1.21.5 and 1.20.12, minor point releases.
These minor releases include 3 security fixes following the security policy:
- net/http: limit chunked data overhead
A malicious HTTP sender can use chunk extensions to cause a receiver
reading from a request or response body to read many more bytes from
the network than are in the body.
A malicious HTTP client can further exploit this to cause a server to
automatically read a large amount of data (up to about 1GiB) when a
handler fails to read the entire body of a request.
Chunk extensions are a little-used HTTP feature which permit including
additional metadata in a request or response body sent using the chunked
encoding. The net/http chunked encoding reader discards this metadata.
A sender can exploit this by inserting a large metadata segment with
each byte transferred. The chunk reader now produces an error if the
ratio of real body to encoded bytes grows too small.
Thanks to Bartek Nowotarski for reporting this issue.
This is CVE-2023-39326 and Go issue https://go.dev/issue/64433.
- cmd/go: go get may unexpectedly fallback to insecure git
Using go get to fetch a module with the ".git" suffix may unexpectedly
fallback to the insecure "git://" protocol if the module is unavailable
via the secure "https://" and "git+ssh://" protocols, even if GOINSECURE
is not set for said module. This only affects users who are not using
the module proxy and are fetching modules directly (i.e. GOPROXY=off).
Thanks to David Leadbeater for reporting this issue.
This is CVE-2023-45285 and Go issue https://go.dev/issue/63845.
- path/filepath: retain trailing \ when cleaning paths like \\?\c:\
Go 1.20.11 and Go 1.21.4 inadvertently changed the definition of the
volume name in Windows paths starting with \\?\, resulting in
filepath.Clean(\\?\c:\) returning \\?\c: rather than \\?\c:\ (among
other effects). The previous behavior has been restored.
This is an update to CVE-2023-45283 and Go issue https://go.dev/issue/64028.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.21.4 (released 2023-11-07) includes security fixes to the path/filepath
package, as well as bug fixes to the linker, the runtime, the compiler, and
the go/types, net/http, and runtime/cgo packages. See the Go 1.21.4 milestone
on our issue tracker for details:
- https://github.com/golang/go/issues?q=milestone%3AGo1.21.4+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.21.3...go1.21.4
from the security mailing:
[security] Go 1.21.4 and Go 1.20.11 are released
Hello gophers,
We have just released Go versions 1.21.4 and 1.20.11, minor point releases.
These minor releases include 2 security fixes following the security policy:
- path/filepath: recognize `\??\` as a Root Local Device path prefix.
On Windows, a path beginning with `\??\` is a Root Local Device path equivalent
to a path beginning with `\\?\`. Paths with a `\??\` prefix may be used to
access arbitrary locations on the system. For example, the path `\??\c:\x`
is equivalent to the more common path c:\x.
The filepath package did not recognize paths with a `\??\` prefix as special.
Clean could convert a rooted path such as `\a\..\??\b` into
the root local device path `\??\b`. It will now convert this
path into `.\??\b`.
`IsAbs` did not report paths beginning with `\??\` as absolute.
It now does so.
VolumeName now reports the `\??\` prefix as a volume name.
`Join(`\`, `??`, `b`)` could convert a seemingly innocent
sequence of path elements into the root local device path
`\??\b`. It will now convert this to `\.\??\b`.
This is CVE-2023-45283 and https://go.dev/issue/63713.
- path/filepath: recognize device names with trailing spaces and superscripts
The `IsLocal` function did not correctly detect reserved names in some cases:
- reserved names followed by spaces, such as "COM1 ".
- "COM" or "LPT" followed by a superscript 1, 2, or 3.
`IsLocal` now correctly reports these names as non-local.
This is CVE-2023-45284 and https://go.dev/issue/63713.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.21.3 (released 2023-10-10) includes a security fix to the net/http package.
See the Go 1.21.3 milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.21.3+label%3ACherryPickApproved
full diff: https://github.com/golang/go/compare/go1.21.2...go1.21.3
From the security mailing:
[security] Go 1.21.3 and Go 1.20.10 are released
Hello gophers,
We have just released Go versions 1.21.3 and 1.20.10, minor point releases.
These minor releases include 1 security fixes following the security policy:
- net/http: rapid stream resets can cause excessive work
A malicious HTTP/2 client which rapidly creates requests and
immediately resets them can cause excessive server resource consumption.
While the total number of requests is bounded to the
http2.Server.MaxConcurrentStreams setting, resetting an in-progress
request allows the attacker to create a new request while the existing
one is still executing.
HTTP/2 servers now bound the number of simultaneously executing
handler goroutines to the stream concurrency limit. New requests
arriving when at the limit (which can only happen after the client
has reset an existing, in-flight request) will be queued until a
handler exits. If the request queue grows too large, the server
will terminate the connection.
This issue is also fixed in golang.org/x/net/http2 v0.17.0,
for users manually configuring HTTP/2.
The default stream concurrency limit is 250 streams (requests)
per HTTP/2 connection. This value may be adjusted using the
golang.org/x/net/http2 package; see the Server.MaxConcurrentStreams
setting and the ConfigureServer function.
This is CVE-2023-39325 and Go issue https://go.dev/issue/63417.
This is also tracked by CVE-2023-44487.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.21.2 (released 2023-10-05) includes one security fixes to the cmd/go package,
as well as bug fixes to the compiler, the go command, the linker, the runtime,
and the runtime/metrics package. See the Go 1.21.2 milestone on our issue
tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.21.2+label%3ACherryPickApproved
full diff: https://github.com/golang/go/compare/go1.21.1...go1.21.2
From the security mailing:
[security] Go 1.21.2 and Go 1.20.9 are released
Hello gophers,
We have just released Go versions 1.21.2 and 1.20.9, minor point releases.
These minor releases include 1 security fixes following the security policy:
- cmd/go: line directives allows arbitrary execution during build
"//line" directives can be used to bypass the restrictions on "//go:cgo_"
directives, allowing blocked linker and compiler flags to be passed during
compliation. This can result in unexpected execution of arbitrary code when
running "go build". The line directive requires the absolute path of the file in
which the directive lives, which makes exploting this issue significantly more
complex.
This is CVE-2023-39323 and Go issue https://go.dev/issue/63211.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.20.8 (released 2023-09-06) includes two security fixes to the html/template
package, as well as bug fixes to the compiler, the go command, the runtime,
and the crypto/tls, go/types, net/http, and path/filepath packages. See the
Go 1.20.8 milestone on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.20.8+label%3ACherryPickApproved
full diff: https://github.com/golang/go/compare/go1.20.7...go1.20.8
From the security mailing:
[security] Go 1.21.1 and Go 1.20.8 are released
Hello gophers,
We have just released Go versions 1.21.1 and 1.20.8, minor point releases.
These minor releases include 4 security fixes following the security policy:
- cmd/go: go.mod toolchain directive allows arbitrary execution
The go.mod toolchain directive, introduced in Go 1.21, could be leveraged to
execute scripts and binaries relative to the root of the module when the "go"
command was executed within the module. This applies to modules downloaded using
the "go" command from the module proxy, as well as modules downloaded directly
using VCS software.
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2023-39320 and Go issue https://go.dev/issue/62198.
- html/template: improper handling of HTML-like comments within script contexts
The html/template package did not properly handle HMTL-like "<!--" and "-->"
comment tokens, nor hashbang "#!" comment tokens, in <script> contexts. This may
cause the template parser to improperly interpret the contents of <script>
contexts, causing actions to be improperly escaped. This could be leveraged to
perform an XSS attack.
Thanks to Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.) for reporting this
issue.
This is CVE-2023-39318 and Go issue https://go.dev/issue/62196.
- html/template: improper handling of special tags within script contexts
The html/template package did not apply the proper rules for handling occurrences
of "<script", "<!--", and "</script" within JS literals in <script> contexts.
This may cause the template parser to improperly consider script contexts to be
terminated early, causing actions to be improperly escaped. This could be
leveraged to perform an XSS attack.
Thanks to Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.) for reporting this
issue.
This is CVE-2023-39319 and Go issue https://go.dev/issue/62197.
- crypto/tls: panic when processing post-handshake message on QUIC connections
Processing an incomplete post-handshake message for a QUIC connection caused a panic.
Thanks to Marten Seemann for reporting this issue.
This is CVE-2023-39321 and CVE-2023-39322 and Go issue https://go.dev/issue/62266.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Includes a fix for CVE-2023-29409
go1.20.7 (released 2023-08-01) includes a security fix to the crypto/tls
package, as well as bug fixes to the assembler and the compiler. See the
Go 1.20.7 milestone on our issue tracker for details:
- https://github.com/golang/go/issues?q=milestone%3AGo1.20.7+label%3ACherryPickApproved
- full diff: https://github.com/golang/go/compare/go1.20.6...go1.20.7
From the mailing list announcement:
[security] Go 1.20.7 and Go 1.19.12 are released
Hello gophers,
We have just released Go versions 1.20.7 and 1.19.12, minor point releases.
These minor releases include 1 security fixes following the security policy:
- crypto/tls: restrict RSA keys in certificates to <= 8192 bits
Extremely large RSA keys in certificate chains can cause a client/server
to expend significant CPU time verifying signatures. Limit this by
restricting the size of RSA keys transmitted during handshakes to <=
8192 bits.
Based on a survey of publicly trusted RSA keys, there are currently only
three certificates in circulation with keys larger than this, and all
three appear to be test certificates that are not actively deployed. It
is possible there are larger keys in use in private PKIs, but we target
the web PKI, so causing breakage here in the interests of increasing the
default safety of users of crypto/tls seems reasonable.
Thanks to Mateusz Poliwczak for reporting this issue.
View the release notes for more information:
https://go.dev/doc/devel/release#go1.20.7
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.20.6 (released 2023-07-11) includes a security fix to the net/http package,
as well as bug fixes to the compiler, cgo, the cover tool, the go command,
the runtime, and the crypto/ecdsa, go/build, go/printer, net/mail, and text/template
packages. See the Go 1.20.6 milestone on our issue tracker for details.
https://github.com/golang/go/issues?q=milestone%3AGo1.20.6+label%3ACherryPickApproved
Full diff: https://github.com/golang/go/compare/go1.20.5...go1.20.6
These minor releases include 1 security fixes following the security policy:
net/http: insufficient sanitization of Host header
The HTTP/1 client did not fully validate the contents of the Host header.
A maliciously crafted Host header could inject additional headers or entire
requests. The HTTP/1 client now refuses to send requests containing an
invalid Request.Host or Request.URL.Host value.
Thanks to Bartek Nowotarski for reporting this issue.
Includes security fixes for [CVE-2023-29406 ][1] and Go issue https://go.dev/issue/60374
[1]: https://github.com/advisories/GHSA-f8f7-69v5-w4vx
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go1.20.5 (released 2023-06-06) includes four security fixes to the cmd/go and
runtime packages, as well as bug fixes to the compiler, the go command, the
runtime, and the crypto/rsa, net, and os packages. See the Go 1.20.5 milestone
on our issue tracker for details:
https://github.com/golang/go/issues?q=milestone%3AGo1.20.5+label%3ACherryPickApproved
full diff: https://github.com/golang/go/compare/go1.20.4...go1.20.5
These minor releases include 3 security fixes following the security policy:
- cmd/go: cgo code injection
The go command may generate unexpected code at build time when using cgo. This
may result in unexpected behavior when running a go program which uses cgo.
This may occur when running an untrusted module which contains directories with
newline characters in their names. Modules which are retrieved using the go command,
i.e. via "go get", are not affected (modules retrieved using GOPATH-mode, i.e.
GO111MODULE=off, may be affected).
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2023-29402 and Go issue https://go.dev/issue/60167.
- runtime: unexpected behavior of setuid/setgid binaries
The Go runtime didn't act any differently when a binary had the setuid/setgid
bit set. On Unix platforms, if a setuid/setgid binary was executed with standard
I/O file descriptors closed, opening any files could result in unexpected
content being read/written with elevated prilieges. Similarly if a setuid/setgid
program was terminated, either via panic or signal, it could leak the contents
of its registers.
Thanks to Vincent Dehors from Synacktiv for reporting this issue.
This is CVE-2023-29403 and Go issue https://go.dev/issue/60272.
- cmd/go: improper sanitization of LDFLAGS
The go command may execute arbitrary code at build time when using cgo. This may
occur when running "go get" on a malicious module, or when running any other
command which builds untrusted code. This is can by triggered by linker flags,
specified via a "#cgo LDFLAGS" directive.
Thanks to Juho Nurminen of Mattermost for reporting this issue.
This is CVE-2023-29404 and CVE-2023-29405 and Go issues https://go.dev/issue/60305 and https://go.dev/issue/60306.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Adds a Dockerfile and make targets to update and validate
generated files (proto, seccomp default profile)
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
